US5548813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phased array cellular base station and associated methods for enhanced power efficiency
Assignee: Ericsson Inc
•
Filing: 1994-03-24
•
Granted: 1996-08-20
•
Expires: 2014-03-24
Abstract
Abstract A base station includes a radio channel generating circuit for generating a plurality of individual radio channel signals each at a different frequency from one another, and a plurality of individual phased array antennas operatively connected to the radio channel generating circuit so that each individual phased array antenna transmits only one individual radio channel signal at a time. Each of the phased array antennas preferably includes a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern. Each radiating element is readily provided by a stripline, and the substrate is preferably a circuit board. Accordingly, another feature of the base station according to the invention is that power radiated by each phased array antenna can be selectively controlled to reduce possible interference while maintaining communications with respective mobile units that are both near and far from the base station. A switch may be provided between the radio channel generating circuit and the phased array antennas to facilitate cell splitting. Method aspects for operating the base station are also disclosed.
Inventors
- 👤 Philippe M. Charas
- 👤 Paul W. Dent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:04
CPC Classifications
H; H04; H04W; H04W16/00; H04W16/24; H04W16/28; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/22; H01Q1/24; H01Q1/241; H01Q1/246; H01Q21/00; H01Q21/06; H01Q21/061; H01Q21/065; H01Q21/08; H01Q21/24; H01Q9/00; H01Q9/04; H01Q9/0407; H01Q9/0421; H01Q9/0428; H01Q9/0435; H04B; H04B7/00; H04B7/02; H04B7/10; H04B7/04; H04B7/06; H04W52/00; H04W52/02; H04W52/0203; H04W52/0206; Y; Y02; Y02D; Y02D30/00; Y02D30/70
Claims Analysis
Total Claims: 77
Claim 1
Independent Claim
104 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another; at least four individual phased array antennas, positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual cellular radio channel signal.
Claim 2
Dependent Claim
104 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another; at least four individual phased array antennas, positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual cellular radio channel signal.
Claim 3
Dependent Claim
29 words
A base station according to Claim 1 wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern.
Claim 4
Dependent Claim
22 words
A base station according to claim 2 wherein each radiating element comprises a stripline, and wherein said substrate comprises a circuit board.
Claim 5
Dependent Claim
34 words
A base station according to claim 2 further comprising a respective amplifier connected to each radiating element and mounted on said substrate so that each phased array antenna defines an active phased array antenna.
Claim 6
Dependent Claim
56 words
A base station according to claim 1 further comprising a tower having a lower portion adjacent ground level and an upper portion on which said phased array antennas are mounted, wherein said radio channel generating means is located adjacent the lower portion of said tower, and wherein said linking means comprises a plurality of interconnecting cables.
Claim 7
Dependent Claim
35 words
A base station according to claim 1 further comprising a tower having an upper portion on which said phased array antennas are mounted, and wherein said radio channel generating means is located on said tower.
Claim 8
Dependent Claim
38 words
A base station according to claim 1 further comprising a receive antenna positioned adjacent said phased array antennas for receiving from mobile units a plurality of individual radio channel signals each at a different frequency from one another.
Claim 9
Dependent Claim
33 words
A base station according to claim 7 wherein said receive antenna comprises a receive phased array antenna including a substrate and a plurality of receive antenna elements mounted thereon in a predetermined pattern.
Claim 10
Dependent Claim
64 words
A base station according to claim 8 further comprising: combining network means mounted on said substrate of said receive antenna and connected to said plurality of receive antenna elements for coherently coupling said plurality of individual radio channel signals received thereby; and amplifier means mounted on said substrate of said receive antenna and connected to said combining network means for amplifying a signal therefrom.
Claim 11
Dependent Claim
39 words
A base station according to claim 1 wherein said radio channel generating means further comprises modulator means for modulating a plurality of radio frequency carriers with respective input signals to thereby generate said plurality of individual radio channel signals.
Claim 12
Dependent Claim
162 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 13
Dependent Claim
162 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 14
Dependent Claim
148 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 15
Dependent Claim
148 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 16
Dependent Claim
149 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 17
Dependent Claim
149 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas; linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 18
Dependent Claim
98 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another; and at least four individual phased array antennas positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas and connected to said cellular radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal.
Claim 19
Dependent Claim
98 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another; and at least four individual phased array antennas positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas and connected to said cellular radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal.
Claim 20
Dependent Claim
29 words
A base station according to claim 14 wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern.
Claim 21
Dependent Claim
22 words
A base station according to claim 15 wherein each radiating element comprises a stripline, and wherein said substrate comprises a circuit board.
Claim 22
Dependent Claim
34 words
A base station according to claim 15 further comprising a respective amplifier connected to each radiating element and mounted on said substrate so that each phased array antenna defines an active phased array antenna.
Claim 23
Dependent Claim
38 words
A base station according to claim 14 further comprising a receive antenna positioned adjacent said phased array antennas for receiving from mobile units a plurality of individual radio channel signals each at a different frequency from one another.
Claim 24
Dependent Claim
33 words
A base station according to claim 18 wherein said receive antenna comprises a receive phased array antenna including a substrate and a plurality of receive antenna elements mounted thereon in a predetermined pattern.
Claim 25
Dependent Claim
64 words
A base station according to claim 19 further comprising: combining network means mounted on said substrate of said receive antenna and connected to said plurality of receive antenna elements for coherently coupling said plurality of individual radio channel signals received thereby; and amplifier means mounted on said substrate of said receive antenna and connected to said combining network means for amplifying a signal therefrom.
Claim 26
Dependent Claim
39 words
A base station according to claim 14 wherein said radio channel generating means further comprises modulator means for modulating a plurality of radio frequency carriers with respective input signals to thereby generate said plurality of individual radio channel signals.
Claim 27
Dependent Claim
155 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; and a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 28
Dependent Claim
155 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; and a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 29
Dependent Claim
141 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; and a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 30
Dependent Claim
141 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; and a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 31
Dependent Claim
142 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 32
Dependent Claim
142 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another; a plurality of individual phased array antennas connected to said radio channel generating means so that each individual phased array antenna transmits only one individual radio channel signal; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 33
Dependent Claim
111 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of radio channel signals; at least one phased array antenna connected to said radio channel generating means, said at least one phased array antenna comprising a plurality of radiating elements; signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit; and antenna power control means connected to said signal quality receiver means and said at least one phased array antenna for selectively operating predetermined ones of said radiating elements responsive to said signal quality received at the mobile unit.
Claim 34
Dependent Claim
111 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of radio channel signals; at least one phased array antenna connected to said radio channel generating means, said at least one phased array antenna comprising a plurality of radiating elements; signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit; and antenna power control means connected to said signal quality receiver means and said at least one phased array antenna for selectively operating predetermined ones of said radiating elements responsive to said signal quality received at the mobile unit.
Claim 35
Dependent Claim
28 words
A base station according to claim 25 wherein said at least one phased array antenna further comprises a substrate on which said plurality of radiating elements are mounted.
Claim 36
Dependent Claim
22 words
A base station according to claim 26 wherein each radiating element comprises a stripline, and wherein said substrate comprises a circuit board.
Claim 37
Dependent Claim
37 words
A base station according to claim 26 further comprising a respective amplifier connected to each radiating element and mounted on said substrate so that said at least one phased array antenna defines an active phased array antenna.
Claim 38
Dependent Claim
29 words
A base station according to claim 28 wherein said antenna power control means comprises a microprocessor operating under stored program control to selectively operate predetermined ones of the amplifiers.
Claim 39
Dependent Claim
128 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each cellular radio channel signal; at least four individual phased array antennas positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual cellular radio channel signal.
Claim 40
Dependent Claim
128 words
A base station for a cellular communications system including a plurality of coverage areas, said base station comprising: radio channel generating means for generating a plurality of individual cellular radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each cellular radio channel signal; at least four individual phased array antennas positioned such that at least two of said at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual cellular radio channel signal.
Claim 41
Dependent Claim
34 words
A base station according to claim 30 wherein said multiplexing means comprises means for multiplexing each input signal into a respective time slot in a repetitive multiplex frame for a respective radio channel signal.
Claim 42
Dependent Claim
35 words
A base station according to claim 30 wherein said multiplexing means comprises means for multiplexing each input signal into predetermined time slot in respective repetitive multiplex frames for a plurality of predetermined radio channel signals.
Claim 43
Dependent Claim
38 words
A base station according to claim 32 further comprising a receive antenna positioned adjacent said phased array antennas for receiving from mobile units a plurality of individual radio channel signals each at a different frequency from one another.
Claim 44
Dependent Claim
29 words
A base station according to claim 30 wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern.
Claim 45
Dependent Claim
22 words
A base station according to claim 34 wherein each radiating element comprises a stripline, and wherein said substrate comprises a circuit board.
Claim 46
Dependent Claim
34 words
A base station according to claim 34 further comprising a respective amplifier connected to each radiating element and mounted on said substrate so that each phased array antenna defines an active phased array antenna.
Claim 47
Dependent Claim
39 words
A base station according to claim 32 wherein said radio channel generating means further comprises modulator means for modulating a plurality of radio frequency carriers with respective information signals to thereby generate said plurality of individual radio channel signals.
Claim 48
Dependent Claim
185 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 49
Dependent Claim
185 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 50
Dependent Claim
33 words
A base station according to claim 33 wherein said receive antenna comprises a receive phased array antenna including a substrate and a plurality of receive antenna elements mounted thereon in a predetermined pattern.
Claim 51
Dependent Claim
170 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 52
Dependent Claim
170 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern; said base station further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 53
Dependent Claim
205 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein said multiplexing means comprises means for multiplexing each input signal into predetermined time slot in respective repetitive multiplex frames for a plurality of predetermined radio channel signals; said base station further comprising switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 54
Dependent Claim
205 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of individual radio channel signals each at a different frequency from one another, said radio channel generating means further comprising multiplexing means for time division multiplexing a plurality of input signals for each radio channel signal; a plurality of individual phased array antennas; and linking means operatively connecting said radio channel generating means and said phased array antennas so that each individual phased array antenna transmits only one individual radio channel signal; wherein said multiplexing means comprises means for multiplexing each input signal into predetermined time slot in respective repetitive multiplex frames for a plurality of predetermined radio channel signals; said base station further comprising switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 55
Dependent Claim
118 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of radio channel signals; a plurality of phased array antennas connected to said radio channel generating means; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 56
Dependent Claim
118 words
A base station for a cellular communications system, said base station comprising: radio channel generating means for generating a plurality of radio channel signals; a plurality of phased array antennas connected to said radio channel generating means; and switch means connected between said radio channel generating means and said phased array antennas and movable between first and second positions so that said switch means when in the first position couples together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal, and so that said switch means when in the second position decouples the two or more predetermined phased array antennas for increasing radio channel capacity for the base station.
Claim 57
Dependent Claim
29 words
A base station according to claim 42 wherein each of said phased array antennas comprises a substrate and a plurality of radiating elements mounted thereon in a predetermined pattern.
Claim 58
Dependent Claim
75 words
A base station according to claim 43 further comprising signal quality receiver means for receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and further comprising antenna power control means connected to said signal quality receiver means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 59
Dependent Claim
61 words
A base station according to claim 43 further comprising signal strength means for sensing received signal strength from a mobile unit, and further comprising antenna power control means connected to said signal strength means and said phased array antennas for selectively operating predetermined ones of said radiating elements in each respective phased array antenna responsive to the sensed received signal strength.
Claim 60
Dependent Claim
22 words
A base station according to claim 43 wherein each radiating element comprises a stripline, and wherein said substrate comprises a circuit board.
Claim 61
Dependent Claim
34 words
A base station according to claim 46 further comprising a respective amplifier connected to each radiating element and mounted on said substrate so that each phased array antenna defines an active phased array antenna.
Claim 62
Dependent Claim
39 words
A base station according to claim 42 wherein said radio channel generating means further comprises modulator means for modulating a plurality of radio frequency carriers with respective input signals to thereby generate said plurality of individual radio channel signals.
Claim 63
Independent Claim
102 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of coverage areas, the base station of the type including at least four individual phased array antennas positioned such that at least two of the at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas, said method comprising the steps of: generating a plurality of individual cellular radio channel signals each at a different frequency from one another; and operating each individual phased array antenna to transmit only one individual cellular radio channel signal.
Claim 64
Independent Claim
102 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of coverage areas, the base station of the type including at least four individual phased array antennas positioned such that at least two of the at least four phased array antennas illuminate at least one common coverage area of the plurality of coverage areas, said method comprising the steps of: generating a plurality of individual cellular radio channel signals each at a different frequency from one another; and operating each individual phased array antenna to transmit only one individual cellular radio channel signal.
Claim 65
Dependent Claim
27 words
A method according to claim 49 further comprising receiving from mobile units a plurality of individual radio channel signals each at a different frequency from one another.
Claim 66
Dependent Claim
30 words
A method according to claim 49 wherein the step of generating the plurality of individual radio channel signals comprises modulating a plurality of radio frequency carriers with respective input signals.
Claim 67
Dependent Claim
34 words
A method according to claim 49 wherein the step of generating a plurality of individual radio channels comprises time division multiplexing a plurality of input signals into predetermined time slots of repetitive multiplex frames.
Claim 68
Independent Claim
122 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of individual phased array antennas, said method comprising the steps of: generating a plurality of individual radio channel signals each at a different frequency from one another; and operating each individual phased array antenna to transmit only one individual radio channel signal; wherein each of the phased array antennas includes a plurality of radiating elements, and further comprising the step of receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and selectively operating predetermined ones of the radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 69
Independent Claim
122 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of individual phased array antennas, said method comprising the steps of: generating a plurality of individual radio channel signals each at a different frequency from one another; and operating each individual phased array antenna to transmit only one individual radio channel signal; wherein each of the phased array antennas includes a plurality of radiating elements, and further comprising the step of receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit, and selectively operating predetermined ones of the radiating elements in each respective phased array antenna responsive to said signal quality received at the mobile unit.
Claim 70
Independent Claim
81 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of individual phased array antennas, said method comprising the steps of: generating a plurality of individual radio channel signals each at a different frequency from one another; operating each individual phased array antenna to transmit only one individual radio channel signal; and coupling together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal.
Claim 71
Independent Claim
81 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of individual phased array antennas, said method comprising the steps of: generating a plurality of individual radio channel signals each at a different frequency from one another; operating each individual phased array antenna to transmit only one individual radio channel signal; and coupling together two or more predetermined phased array antennas for increasing radiated antenna power for a respective radio channel signal.
Claim 72
Dependent Claim
46 words
A method according to claim 54 further comprising the steps of later decoupling the two or more predetermined phased array antennas, and operating the two or more predetermined phased array antennas with respective different radio frequency channels for increasing radio channel capacity for the base station.
Claim 73
Independent Claim
91 words
A method for operating a base station for a radio cellular radio communications system including at least one phased array antenna comprising a plurality of radiating elements, the method comprising the steps of: generating a plurality of radio channel signals and transmitting the plurality of radio channel signals from the at least one phased array antenna; receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit; and selectively operating predetermined ones of the radiating elements responsive to signal quality received at the mobile unit.
Claim 74
Independent Claim
91 words
A method for operating a base station for a radio cellular radio communications system including at least one phased array antenna comprising a plurality of radiating elements, the method comprising the steps of: generating a plurality of radio channel signals and transmitting the plurality of radio channel signals from the at least one phased array antenna; receiving a signal transmitted from a mobile unit relating to signal quality received at the mobile unit; and selectively operating predetermined ones of the radiating elements responsive to signal quality received at the mobile unit.
Claim 75
Dependent Claim
46 words
A method according to claim 56 wherein the at least one phased array antenna further comprises respective amplifiers associated with each of the radiating elements, and wherein the step of selectively operating predetermined ones of the radiating elements comprises selectively controlling power delivered to respective amplifiers.
Claim 76
Independent Claim
89 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of phased array antennas, the method comprising the steps of: generating a radio channel signal and delivering same to a plurality of predetermined phased array antennas coupled together for increasing radiated antenna power for the radio channel signal; and later decoupling the plurality of predetermined phased array antennas and operating the predetermined phased array antennas with respective different radio frequency channels for increasing radio channel capacity for the base station.
Claim 77
Independent Claim
89 words
A method for operating a base station for a cellular radio communications system of the type including a plurality of phased array antennas, the method comprising the steps of: generating a radio channel signal and delivering same to a plurality of predetermined phased array antennas coupled together for increasing radiated antenna power for the radio channel signal; and later decoupling the plurality of predetermined phased array antennas and operating the predetermined phased array antennas with respective different radio frequency channels for increasing radio channel capacity for the base station.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-08-20 | 2000-02-19 | 2000-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-08-20 | 2004-02-19 | 2004-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-08-20 | 2008-02-19 | 2008-08-20 | $7700.00 | Window Closed / Lapsed |